Home / 3,480.84-5,221.59-1,289.04

Finding the Fourth Proportional to 3,480.84, 5,221.59 and 1,289.04

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Solution

The fourth proportional to 3,480.84, 5,221.59 and 1,289.04 is: 1,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.84 : 5,221.59 = 1,289.04 : x
  2. Step 2: Convert to fraction form
    3,480.84/5,221.59 = 1,289.04/x
  3. Step 3: Cross multiply
    3,480.84x = 5,221.59 × 1,289.04
  4. Step 4: Simplify right side
    3,480.84x = 6,730,838.37
  5. Step 5: Solve for x
    x = 6,730,838.37/3,480.84
  6. Step 6: Final answer
    x = 1,933.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.